LRA 222 Final Study Guide Questions With
Correct Answers
The |cathode |side |of |the |tube |should |be |directed |toward |the |_____ |part |of |the |patient. |- |
CORRECT |ANSWER✔✔-Thicker
The |most |widely |used |support |structure |for |the |x-ray |tube |is |the |______________. |- |CORRECT |
ANSWER✔✔-ceiling |support |system
Tube |failure |can |occur |from |_______________. |- |CORRECT |ANSWER✔✔-long |exposure |times
As |an |x-ray |tube |ages, |the |inside |can |become |coated |with |tungsten, |which |can |cause |_____ |in
|the |tube. |- |CORRECT |ANSWER✔✔-arcing
The |negative |side |of |the |x-ray |tube |holds |the |________. |- |CORRECT |ANSWER✔✔-filament
The |filament |is |made |of |__________. |- |CORRECT |ANSWER✔✔-Tungsten
The |effective |focal |spot |size |is |_____________ |the |actual |focal |spot |size. |- |CORRECT |
ANSWER✔✔-smaller |than
The |external |structure |of |the |x-ray |tube |includes |the |support |structure, |the |protective |
housing, |and |the |___________. |- |CORRECT |ANSWER✔✔-glass |envelope
Thermionic |emission |at |the |filament |creates |a |__________. |- |CORRECT |ANSWER✔✔-space |
charge
, The |target |of |the |rotating |anode |is |usually |coated |with |a |___________ |alloy. |- |CORRECT |
ANSWER✔✔-Tungsten
What |is |the |most |common |cause |of |tube |failure? |- |CORRECT |ANSWER✔✔-Tungsten |
vaporization
The |filament |in |an |x-ray |tube |is |about |_____ |cm |in |length. |- |CORRECT |ANSWER✔✔-1-2
When |electrons |bombard |the |target, |____% |of |their |kinetic |energy |is |converted |to |heat. |- |
CORRECT |ANSWER✔✔-99
When |electrons |bombard |the |target, |____% |of |their |kinetic |energy |is |converted |to |heat. |- |
CORRECT |ANSWER✔✔-99
The |rotating |anode |is |turned |by |a |____________. |- |CORRECT |ANSWER✔✔-magnetic |field
The |cathode |side |of |the |tube |should |be |directed |toward |the |_____ |part |of |the |patient. |- |
CORRECT |ANSWER✔✔-thicker
The |most |widely |used |support |structure |for |the |x-ray |tube |is |the |______________. |- |CORRECT |
ANSWER✔✔-ceiling |support |system
Tube |failure |can |occur |from |_______________. |- |CORRECT |ANSWER✔✔-long |exposure |times
The |external |structure |of |the |x-ray |tube |includes |the |support |structure, |the |protective |
housing, |and |the |_ |- |CORRECT |ANSWER✔✔-glass |envelope
Correct Answers
The |cathode |side |of |the |tube |should |be |directed |toward |the |_____ |part |of |the |patient. |- |
CORRECT |ANSWER✔✔-Thicker
The |most |widely |used |support |structure |for |the |x-ray |tube |is |the |______________. |- |CORRECT |
ANSWER✔✔-ceiling |support |system
Tube |failure |can |occur |from |_______________. |- |CORRECT |ANSWER✔✔-long |exposure |times
As |an |x-ray |tube |ages, |the |inside |can |become |coated |with |tungsten, |which |can |cause |_____ |in
|the |tube. |- |CORRECT |ANSWER✔✔-arcing
The |negative |side |of |the |x-ray |tube |holds |the |________. |- |CORRECT |ANSWER✔✔-filament
The |filament |is |made |of |__________. |- |CORRECT |ANSWER✔✔-Tungsten
The |effective |focal |spot |size |is |_____________ |the |actual |focal |spot |size. |- |CORRECT |
ANSWER✔✔-smaller |than
The |external |structure |of |the |x-ray |tube |includes |the |support |structure, |the |protective |
housing, |and |the |___________. |- |CORRECT |ANSWER✔✔-glass |envelope
Thermionic |emission |at |the |filament |creates |a |__________. |- |CORRECT |ANSWER✔✔-space |
charge
, The |target |of |the |rotating |anode |is |usually |coated |with |a |___________ |alloy. |- |CORRECT |
ANSWER✔✔-Tungsten
What |is |the |most |common |cause |of |tube |failure? |- |CORRECT |ANSWER✔✔-Tungsten |
vaporization
The |filament |in |an |x-ray |tube |is |about |_____ |cm |in |length. |- |CORRECT |ANSWER✔✔-1-2
When |electrons |bombard |the |target, |____% |of |their |kinetic |energy |is |converted |to |heat. |- |
CORRECT |ANSWER✔✔-99
When |electrons |bombard |the |target, |____% |of |their |kinetic |energy |is |converted |to |heat. |- |
CORRECT |ANSWER✔✔-99
The |rotating |anode |is |turned |by |a |____________. |- |CORRECT |ANSWER✔✔-magnetic |field
The |cathode |side |of |the |tube |should |be |directed |toward |the |_____ |part |of |the |patient. |- |
CORRECT |ANSWER✔✔-thicker
The |most |widely |used |support |structure |for |the |x-ray |tube |is |the |______________. |- |CORRECT |
ANSWER✔✔-ceiling |support |system
Tube |failure |can |occur |from |_______________. |- |CORRECT |ANSWER✔✔-long |exposure |times
The |external |structure |of |the |x-ray |tube |includes |the |support |structure, |the |protective |
housing, |and |the |_ |- |CORRECT |ANSWER✔✔-glass |envelope
